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All results from a given calculation for CH3CH2COOH (Propanoic Acid)

using model chemistry: B2PLYP/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/3-21G*
 hartrees
Energy at 0K-266.563678
Energy at 298.15K-266.570806
HF Energy-266.387446
Nuclear repulsion energy176.576729
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B2PLYP/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3492 3492 14.73      
2 A' 3165 3165 17.90      
3 A' 3099 3099 7.07      
4 A' 3096 3096 14.69      
5 A' 1761 1761 144.43      
6 A' 1584 1584 8.71      
7 A' 1542 1542 22.35      
8 A' 1491 1491 12.55      
9 A' 1421 1421 34.14      
10 A' 1351 1351 4.40      
11 A' 1149 1149 103.71      
12 A' 1082 1082 184.70      
13 A' 1017 1017 12.58      
14 A' 804 804 7.30      
15 A' 608 608 15.32      
16 A' 464 464 29.60      
17 A' 253 253 2.52      
18 A" 3169 3169 19.59      
19 A" 3130 3130 1.11      
20 A" 1584 1584 7.54      
21 A" 1335 1335 0.11      
22 A" 1164 1164 0.04      
23 A" 846 846 16.81      
24 A" 664 664 123.52      
25 A" 531 531 30.45      
26 A" 194 194 0.00      
27 A" 45 45 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 20020.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20020.3 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B2PLYP/3-21G*
ABC
0.32590 0.12722 0.09471

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.559 0.000
C2 -0.613 -0.824 0.000
C3 0.479 -1.904 0.000
O4 -0.995 1.525 0.000
O5 1.198 0.838 0.000
H6 -1.261 -0.905 0.878
H7 -1.261 -0.905 -0.878
H8 0.033 -2.901 0.000
H9 1.114 -1.800 -0.882
H10 1.114 -1.800 0.882
H11 -0.556 2.419 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 O5 H6 H7 H8 H9 H10 H11
C11.51232.50901.38721.22992.12212.12213.45992.75392.75391.9413
C21.51231.53602.37972.45751.09431.09432.17542.17142.17143.2430
C32.50901.53603.73262.83432.18992.18991.09211.09191.09194.4450
O41.38722.37973.73262.29852.59752.59754.54404.03554.03550.9959
O51.22992.45752.83432.29853.13883.13883.91582.78242.78242.3614
H62.12211.09432.18992.59753.13881.75682.53573.08882.53823.5094
H72.12211.09432.18992.59753.13881.75682.53572.53823.08883.5094
H83.45992.17541.09214.54403.91582.53572.53571.77731.77735.3523
H92.75392.17141.09194.03552.78243.08882.53821.77731.76364.6224
H102.75392.17141.09194.03552.78242.53823.08881.77731.76364.6224
H111.94133.24304.44500.99592.36143.50943.50945.35234.62244.6224

picture of Propanoic Acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 110.779 C1 C2 H6 107.922
C1 C2 H7 107.922 C1 O4 H11 107.968
C2 C1 O4 110.237 C2 C1 O5 127.013
C2 C3 H8 110.600 C2 C3 H9 110.293
C2 C3 H10 110.293 C3 C2 H6 111.621
C3 C2 H7 111.621 O4 C1 O5 122.750
H6 C2 H7 106.776 H8 C3 H9 108.934
H8 C3 H10 108.934 H9 C3 H10 107.721
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.645      
2 C -0.491      
3 C -0.542      
4 O -0.569      
5 O -0.476      
6 H 0.234      
7 H 0.234      
8 H 0.189      
9 H 0.205      
10 H 0.205      
11 H 0.364      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.181 -0.083 0.000 1.184
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.074 -0.335 0.000
y -0.335 -24.919 0.000
z 0.000 0.000 -29.319
Traceless
 xyz
x -7.955 -0.335 0.000
y -0.335 7.277 0.000
z 0.000 0.000 0.678
Polar
3z2-r21.356
x2-y2-10.155
xy-0.335
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.364 -0.134 0.000
y -0.134 5.897 0.000
z 0.000 0.000 3.591


<r2> (average value of r2) Å2
<r2> 125.002
(<r2>)1/2 11.180